#! /bin/sh

LOGF=make.log
IAM=`hostname || uname -n`
MYNAME=`IFS=. ; set $IAM ; echo $1`
SIG=

case "$1" in
 0.*)
    SIG=$1
    shift
    CONFIG_ARGS="$@"
    KEY=`sed -e q < .buildkey-$MYNAME`
    case "$SIG" in
     $KEY) ;;
     *)
	echo "Wrong directory for build on host $IAM"
	echo "This is <`pwd`>"
	echo "SIG is <$SIG>"
	echo "KEY is <$KEY>"
	exit 1
	;;
    esac
    ;;
 *)
    CONFIG_ARGS="$@"
    ;;
esac

#set -e
#set -x

if [ ! -r sntp/libevent/build-aux/config.guess ] ; then
	echo "Error: bootstrap required." 1>&2 && exit 1
fi

# sntp/scripts/cvo.sh invokes config.guess, and we want it to use the copy
# in the build-aux directory if there's not another config.guess earlier
# on the path, so we invoke it using env to append to the PATH.

CVO=`env PATH="$PATH:./sntp/libevent/build-aux" sntp/scripts/cvo.sh @cvo@`
case "$CVO" in
 *-*-*-*) echo "sntp/scripts/cvo.sh returned <$CVO>, which makes no sense to me."
    exit 1
    ;;
 *-*-*) ;;
 *) echo "sntp/scripts/cvo.sh returned <$CVO>, which makes no sense to me."
    exit 1
    ;;
esac

case "$NTP_BDIR" in
 '')
    case "$IAM" in
     *.ntp.org)
	NTP_BDIR=host
	;;
     *.udel.edu)
	NTP_BDIR=host
	# HMS: --enable-local-libopts is the default now...
	#CONFIG_ARGS="$CONFIG_ARGS --enable-local-libopts"
	case "$CVO" in
	 *-*-ultrix*)
	    CONFIG_ARGS="$CONFIG_ARGS --with-libregex=/usr/local"
	    ;;
	esac
	;;
     *)
	NTP_BDIR=cvo
	;;
     esac
     ;;
esac

case "$NTP_BDIR" in
 host) 
    BASEDIR=A.$MYNAME
    ;;
 cvo)
    BASEDIR=A.$CVO
    ;;
 *)
    echo "build: NTP_BDIR must be either 'cvo' or 'host'!" 1>&2
    exit 1
    ;;
esac

KEYSUF=""

case "$CONFIG_ARGS" in
 *--with-crypto=autokey*)
    KEYSUF="-autokey"
    ;;
 *--without-crypto*)
    KEYSUF="-noopenssl"
    ;;
esac

case "$CONFIG_ARGS" in
 *--disable-all-clocks*)
    KEYSUF="$KEYSUF-no-refclocks"
    ;;
esac

case "$CONFIG_ARGS" in
 *--disable-debugging*)
    KEYSUF="$KEYSUF-nodebug"
    ;;
esac

case "$CC" in
 '')
    CCSUF=""
    ;;
 *)
    CCSUF="-`echo $CC | sed -e 's: :_:g' -e's:/:+:g'`"
    ;;
esac

BDIR="$BASEDIR$KEYSUF$CCSUF"

[ -d "$BDIR" ] || mkdir $BDIR
[ -f "$BDIR/.buildcvo" ] || echo $CVO > $BDIR/.buildcvo
[ -f "$BDIR/.buildhost" ] || echo $IAM > $BDIR/.buildhost


cd $BDIR

#
# Make sure we have a nice that works.
# To disable use of nice, setenv NO_NICE_BUILD=1
#
NICEB=
[ "$NO_NICE_BUILD" != "1" ] && nice true && NICEB=nice
[ -z "$NICEB" ] && {
	NICEB="./.nicebuild-$MYNAME-$SIG"
	cat > $NICEB <<-HEREDOC
		#! /bin/sh
		shift
		\$*
HEREDOC
	chmod +x $NICEB
}

#
# Find a test which supports -nt, unlike Solaris /bin/sh builtin.
#
TEST="${TEST-}"
if [ -z "$TEST" ] ; then
    for try in test /bin/test /usr/bin/test ; do
	case `$try config.status -nt ../configure 2>&1` in
	 '')
	    TEST="$try"
	    # echo "Using $TEST"
	    break
	    ;;
	esac		
    done
    if [ -z "$TEST" ] ; then
	echo "build: need help finding test binary" 1>&2
	exit 1
    fi
fi

CONFIGURE="../configure"
# We need KEYSUF because of RAND_ and others, and -noopenssl"
#CONFIGURE="$CONFIGURE --cache-file=../config.cache-$IAM$KEYSUF$CCSUF"
CONFIGURE="$CONFIGURE $CONFIG_ARGS"


(	# This sequence of commands is logged to make.log.
	# If config.status is newer than ../configure, and the same
	# is true for sntp, we do not need to re-run configure.
	# For libevent, the twist is we may not be configuring the
	# tearoff, so only act if its config.status exists.
	# Solaris /bin/sh doesn't grok -nt.

	( "$TEST" config.status -nt ../configure &&
	  "$TEST" sntp/config.status -nt ../sntp/configure &&
	  ( "$TEST" '!' -f sntp/libevent/config.status ||
	    "$TEST" sntp/libevent/config.status -nt ../sntp/libevent/configure ) ) ||
		"$NICEB" -7 $CONFIGURE
	"$TEST" Makefile -nt config.status ||
		"$NICEB" -5 ./config.status
	"$TEST" sntp/Makefile -nt sntp/config.status ||
		( cd sntp && "$NICEB" -5 ./config.status )
	"$TEST" '!' -f sntp/libevent/Makefile ||
	  "$TEST" sntp/libevent/Makefile -nt sntp/libevent/config.status ||
		( cd sntp/libevent && "$NICEB" -5 ./config.status )
	"$NICEB" -14 ${MAKE-make} && "$NICEB" -11 ${MAKE-make} check
) > $LOGF 2>&1

EXITCODE=$?

# clean up if we made a dummy nice script
case "$NICEB" in
 nice)
    ;;
 *)
    rm "$NICEB"
    ;;
esac

exit $EXITCODE
